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Finding the Fourth Proportional to 123,814.98, 185,629.32 and 60,615.54

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Solution

The fourth proportional to 123,814.98, 185,629.32 and 60,615.54 is: 90,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,814.98 : 185,629.32 = 60,615.54 : x
  2. Step 2: Convert to fraction form
    123,814.98/185,629.32 = 60,615.54/x
  3. Step 3: Cross multiply
    123,814.98x = 185,629.32 × 60,615.54
  4. Step 4: Simplify right side
    123,814.98x = 11,252,021,471.63
  5. Step 5: Solve for x
    x = 11,252,021,471.63/123,814.98
  6. Step 6: Final answer
    x = 90,877.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.